“The Ultimate Fighter 11″ cast member Jamie Yager (3-2) has been forced to withdraw from a planned Tachi Palace Fights 9 bout with Jouban, and in his place steps Chidi Njokuani (4-2).

A potent striker with four first-round stoppages to his credit, Njokuani is the younger brother of current UFC lightweight Anthony Njokuani.

Featuring a flyweight matchup between top contenders Ian McCall and Dustin Ortiz, Tachi Palace Fights 9 takes place May 6 at the Tachi Palace Hotel and Casino in Lemoore, Calif.

“On such short notice, we are happy to be able to have a fighter of Chidi’s caliber compete on our show,” Tachi Palace Fights executive Jeremy Luchau told MMAjunkie.com (www.mmajunkie.com). “I think this is a great matchup of two rising welterweight prospects.”

Jouban made his professional debut at February’s Tachi Palace Fights 8 event. The youngster made a splash with a 15-second knockout of Kyle Griffin, younger brother of perennial UFC contender Tyson Griffin.

Meanwhile, Njokuani carries a two-fight win streak into the matchup. The Muay Thai specialist earned his first career submission win in his most recent outing, a November 2010 win over Jack Montgomery under the King of the Cage banner. Njokuani’s three previous career wins each came via first-round knockout, and none lasted longer than 90 seconds.

In fact, all six of Njokuani’s career bouts have ended in the first round.

An undisclosed Yager injury forced his withdrawal. A timetable for the return of “The Chosyn 1″ has not yet been established.

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